23923736929 has 9 divisors (see below), whose sum is σ = 24121002297. Its totient is φ = 23728075584.

The previous prime is 23923736923. The next prime is 23923736987. The reversal of 23923736929 is 92963732932.

It is a happy number.

The square root of 23923736929 is 154673.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3659645025 + 20264091904 = 60495^2 + 142352^2 .

It is not a de Polignac number, because 23923736929 - 2¹⁹ = 23923212641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23923736929.

It is not an unprimeable number, because it can be changed into a prime (23923736923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21189637 + ... + 21190765.

Almost surely, 2^23923736929 is an apocalyptic number.

23923736929 is the 154673-rd square number.

23923736929 is the 77337-th centered octagonal number.

It is an amenable number.

23923736929 is a deficient number, since it is larger than the sum of its proper divisors (197265368).

23923736929 is an frugal number, since it uses more digits than its factorization.

23923736929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532 (or 1266 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 55.

The spelling of 23923736929 in words is "twenty-three billion, nine hundred twenty-three million, seven hundred thirty-six thousand, nine hundred twenty-nine".